Home / Metals / Stainless Steel / Type 440 (UNS S44000) Type 440 (UNS S44000) Get A Free Quote Now! Description Description Equivalent Materials to Stainless steel UNS S31603 as a PDF file Download as a PDF file Get A Free Quote Now! Your Name (required) Your Email (required) Subject Your Message Related products Type 304L (UNS S30403/1.4307) Type 316S Type 303Se (UNS S30323/JIS SUS303Se)